package cn.arikeky.controller;

import cn.arikeky.domain.User;
import com.netflix.hystrix.contrib.javanica.annotation.HystrixCommand;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.client.RestTemplate;

@RestController
@RequestMapping("/order")
public class OrderController {

    @Autowired
    private RestTemplate restTemplate;

    @GetMapping("/{id}")
    // 标记方法熔断，fallbackMethod指定的是托底方法名称，当远程服务调用出现异常，或是方法本身出现异常，会触发托底方法
    @HystrixCommand(fallbackMethod = "getByIdFallbackMethod")
    public User getById(@PathVariable("id") Long id){
        // 请求地址
        String url = "http://user-server/user/" + id;
        return restTemplate.getForObject(url,User.class);
    }

    public User getByIdFallbackMethod( Long id){
        return new User(-1L, "触发熔断器","网络波动，请稍后重试！");
    }
}
